No bounce light in eevee?
No light bounce, it's the way Eevee works by default, in order to calculate faster. If you want to reintroduce light bounces, create a Light Probe &gt; Irrandiance Volume, scale it, stretch it so that it contains all the area you want to be taken into account, in the Object Data panel give it a better Resolution if necessary, then in the Properties panel &gt; Render &gt; Indirect Lighting, press on the Bake Indirect Lighting button. You'll have to bake again if you make some changes in your lighting.